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Posted to dev@jackrabbit.apache.org by "Clemens Wyss (JIRA)" <ji...@apache.org> on 2010/11/30 16:30:13 UTC

[jira] Issue Comment Edited: (JCR-2715) Improved join query performance

    [ https://issues.apache.org/jira/browse/JCR-2715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965257#action_12965257 ] 

Clemens Wyss edited comment on JCR-2715 at 11/30/10 10:29 AM:
--------------------------------------------------------------

As I have no special node types (cnd)

...
[project] > nt:unstructured, mix:shareable
[task] > nt:unstructured, mix:shareable
...

my guess is that it has to do with the "amount of nodes" being returned/looked up...

      was (Author: clemensdev):
    As I have no special node types (cnd)
...
[project] > nt:unstructured, mix:shareable
[task] > nt:unstructured, mix:shareable
...
my guess is that its to do with the "amount of nodes" being returned/looked up...
  
> Improved join query performance
> -------------------------------
>
>                 Key: JCR-2715
>                 URL: https://issues.apache.org/jira/browse/JCR-2715
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core, query
>            Reporter: Jukka Zitting
>            Assignee: Jukka Zitting
>             Fix For: 2.2.0
>
>         Attachments: SQL2SearchTest.png, ThreeWayJoinTest.png, TwoWayJoinTest.png
>
>
> Our current implementation of SQL2 join queries does not perform very well on pretty much any non-trivial data set.

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